opendaylight/adsal/northbound/hosttracker/src/main/java/org/opendaylight/controller/hosttracker/northbound/HostTrackerNorthbound.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.hosttracker.northbound;
  10
  11 import java.net.InetAddress;
  12 import java.net.UnknownHostException;
  13 import java.util.HashSet;
  14 import java.util.List;
  15 import java.util.Set;
  16
  17 import javax.ws.rs.Consumes;
  18 import javax.ws.rs.DELETE;
  19 import javax.ws.rs.GET;
  20 import javax.ws.rs.PUT;
  21 import javax.ws.rs.Path;
  22 import javax.ws.rs.PathParam;
  23 import javax.ws.rs.Produces;
  24 import javax.ws.rs.QueryParam;
  25 import javax.ws.rs.core.Context;
  26 import javax.ws.rs.core.MediaType;
  27 import javax.ws.rs.core.Response;
  28 import javax.ws.rs.core.SecurityContext;
  29 import javax.ws.rs.core.UriInfo;
  30 import javax.ws.rs.ext.ContextResolver;
  31
  32 import org.codehaus.enunciate.jaxrs.ResponseCode;
  33 import org.codehaus.enunciate.jaxrs.StatusCodes;
  34 import org.codehaus.enunciate.jaxrs.TypeHint;
  35 import org.opendaylight.controller.containermanager.IContainerManager;
  36 import org.opendaylight.controller.hosttracker.IfIptoHost;
  37 import org.opendaylight.controller.hosttracker.hostAware.HostNodeConnector;
  38 import org.opendaylight.controller.northbound.commons.RestMessages;
  39 import org.opendaylight.controller.northbound.commons.exception.BadRequestException;
  40 import org.opendaylight.controller.northbound.commons.exception.ResourceConflictException;
  41 import org.opendaylight.controller.northbound.commons.exception.ResourceNotFoundException;
  42 import org.opendaylight.controller.northbound.commons.exception.ServiceUnavailableException;
  43 import org.opendaylight.controller.northbound.commons.exception.UnauthorizedException;
  44 import org.opendaylight.controller.northbound.commons.query.QueryContext;
  45 import org.opendaylight.controller.northbound.commons.utils.NorthboundUtils;
  46 import org.opendaylight.controller.sal.authorization.Privilege;
  47 import org.opendaylight.controller.sal.core.Node;
  48 import org.opendaylight.controller.sal.core.NodeConnector;
  49 import org.opendaylight.controller.sal.utils.GlobalConstants;
  50 import org.opendaylight.controller.sal.utils.ServiceHelper;
  51 import org.opendaylight.controller.sal.utils.Status;
  52 import org.opendaylight.controller.switchmanager.ISwitchManager;
  53
  54 /**
  55  * Host Tracker Northbound REST APIs.<br>
  56  * This class provides REST APIs to track host location in a network. Host
  57  * Location is represented by Host node connector which is essentially a logical
  58  * entity that represents a Switch/Port. A host is represented by it's
  59  * IP-address and mac-address.
  60  *
  61  * <br>
  62  * <br>
  63  * Authentication scheme : <b>HTTP Basic</b><br>
  64  * Authentication realm : <b>opendaylight</b><br>
  65  * Transport : <b>HTTP and HTTPS</b><br>
  66  * <br>
  67  * HTTPS Authentication is disabled by default.
  68  *
  69  */
  70
  71 @Path("/")
  72 public class HostTrackerNorthbound {
  73
  74     private String username;
  75     private QueryContext queryContext;
  76
  77     @Context
  78     public void setQueryContext(ContextResolver<QueryContext> queryCtxResolver) {
  79       if (queryCtxResolver != null) {
  80         queryContext = queryCtxResolver.getContext(QueryContext.class);
  81       }
  82     }
  83
  84     @Context
  85     public void setSecurityContext(SecurityContext context) {
  86         if (context != null && context.getUserPrincipal() != null) {
  87             username = context.getUserPrincipal().getName();
  88         }
  89     }
  90
  91     protected String getUserName() {
  92         return username;
  93     }
  94
  95     private IfIptoHost getIfIpToHostService(String containerName) {
  96         IContainerManager containerManager = (IContainerManager) ServiceHelper.getGlobalInstance(
  97                 IContainerManager.class, this);
  98         if (containerManager == null) {
  99             throw new ServiceUnavailableException("Container " + RestMessages.SERVICEUNAVAILABLE.toString());
 100         }
 101
 102         boolean found = false;
 103         List<String> containerNames = containerManager.getContainerNames();
 104         for (String cName : containerNames) {
 105             if (cName.trim().equalsIgnoreCase(containerName.trim())) {
 106                 found = true;
 107                 break;
 108             }
 109         }
 110
 111         if (!found) {
 112             throw new ResourceNotFoundException(containerName + " " + RestMessages.NOCONTAINER.toString());
 113         }
 114
 115         IfIptoHost hostTracker = (IfIptoHost) ServiceHelper.getInstance(IfIptoHost.class, containerName, this);
 116         if (hostTracker == null) {
 117             throw new ServiceUnavailableException("Host Tracker " + RestMessages.SERVICEUNAVAILABLE.toString());
 118         }
 119
 120         return hostTracker;
 121     }
 122
 123     private Set<HostConfig> convertHosts(Set<HostNodeConnector> hostNodeConnectors) {
 124         if(hostNodeConnectors == null) {
 125             return null;
 126         }
 127         Set<HostConfig> hosts = new HashSet<HostConfig>();
 128         for(HostNodeConnector hnc : hostNodeConnectors) {
 129             hosts.add(HostConfig.convert(hnc));
 130         }
 131         return hosts;
 132     }
 133
 134     /**
 135      * Returns a list of all Hosts : both configured via PUT API and dynamically
 136      * learnt on the network.
 137      *
 138      * @param containerName
 139      *            Name of the Container. The Container name for the base
 140      *            controller is "default".
 141      * @return List of Active Hosts.
 142      * <pre>
 143      *
 144      * Example:
 145      *
 146      * Request URL:
 147      * http://localhost:8080/controller/nb/v2/hosttracker/default/hosts/active
 148      *
 149      * Response body in XML
 150      *
 151      * &lt;list&gt;
 152      * &#x20;&lt;hostConfig&gt;
 153      * &#x20;&#x20;&lt;dataLayerAddress&gt;00:00:00:00:01:01&lt;/dataLayerAddress&gt;
 154      * &#x20;&#x20;&lt;networkAddress&gt;1.1.1.1&lt;/networkAddress&gt;
 155      * &#x20;&#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 156      * &#x20;&#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:01&lt;/nodeId&gt;
 157      * &#x20;&#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 158      * &#x20;&#x20;&lt;nodeConnectorId&gt;9&lt;/nodeConnectorId&gt;
 159      * &#x20;&#x20;&lt;vlan&gt;0&lt;/vlan&gt;
 160      * &#x20;&#x20;&lt;staticHost&gt;false&lt;/staticHost&gt;
 161      * &#x20;&lt;/hostConfig&gt;
 162      * &#x20;&lt;hostConfig&gt;
 163      * &#x20;&#x20;&lt;dataLayerAddress&gt;00:00:00:00:02:02&lt;/dataLayerAddress&gt;
 164      * &#x20;&#x20;&lt;networkAddress&gt;2.2.2.2&lt;/networkAddress&gt;
 165      * &#x20;&#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 166      * &#x20;&#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:02&lt;/nodeId&gt;
 167      * &#x20;&#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 168      * &#x20;&#x20;&lt;nodeConnectorId&gt;5&lt;/nodeConnectorId&gt;
 169      * &#x20;&#x20;&lt;vlan&gt;0&lt;/vlan&gt;
 170      * &#x20;&#x20;&lt;staticHost&gt;false&lt;/staticHost&gt;
 171      * &#x20;&lt;/hostConfig&gt;
 172      * &lt;/list&gt;
 173      *
 174      * Response body in JSON:
 175      *
 176      * {
 177      * &#x20;"hostConfig":[
 178      * &#x20;&#x20;{
 179      * &#x20;&#x20;&#x20;"dataLayerAddress":"00:00:00:00:01:01",
 180      * &#x20;&#x20;&#x20;"nodeType":"OF",
 181      * &#x20;&#x20;&#x20;"nodeId":"00:00:00:00:00:00:00:01",
 182      * &#x20;&#x20;&#x20;"nodeConnectorType":"OF",
 183      * &#x20;&#x20;&#x20;"nodeConnectorId":"9",
 184      * &#x20;&#x20;&#x20;"vlan":"0",
 185      * &#x20;&#x20;&#x20;"staticHost":"false",
 186      * &#x20;&#x20;&#x20;"networkAddress":"1.1.1.1"
 187      * &#x20;&#x20;},
 188      * &#x20;&#x20;{
 189      * &#x20;&#x20;&#x20;"dataLayerAddress":"00:00:00:00:02:02",
 190      * &#x20;&#x20;&#x20;"nodeType":"OF",
 191      * &#x20;&#x20;&#x20;"nodeId":"00:00:00:00:00:00:00:02",
 192      * &#x20;&#x20;&#x20;"nodeConnectorType":"OF",
 193      * &#x20;&#x20;&#x20;"nodeConnectorId":"5",
 194      * &#x20;&#x20;&#x20;"vlan":"0",
 195      * &#x20;&#x20;&#x20;"staticHost":"false",
 196      * &#x20;&#x20;&#x20;"networkAddress":"2.2.2.2"
 197      * &#x20;&#x20;}
 198      * &#x20;]
 199      * }
 200      * </pre>
 201      */
 202     @Path("/{containerName}/hosts/active")
 203     @GET
 204     @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
 205     @TypeHint(Hosts.class)
 206     @StatusCodes({
 207             @ResponseCode(code = 200, condition = "Operation successful"),
 208             @ResponseCode(code = 404, condition = "The containerName is not found"),
 209             @ResponseCode(code = 503, condition = "One or more of Controller Services are unavailable") })
 210     public Hosts getActiveHosts(@PathParam("containerName") String containerName,
 211         @QueryParam("_q") String queryString) {
 212
 213         if (!NorthboundUtils.isAuthorized(getUserName(), containerName, Privilege.READ, this)) {
 214             throw new UnauthorizedException("User is not authorized to perform this operation on container "
 215                     + containerName);
 216         }
 217         IfIptoHost hostTracker = getIfIpToHostService(containerName);
 218         Hosts hosts = new Hosts(convertHosts(hostTracker.getAllHosts()));
 219         if (queryString != null) {
 220             queryContext.createQuery(queryString, Hosts.class)
 221                 .filter(hosts, HostConfig.class);
 222         }
 223         return hosts;
 224     }
 225
 226     /**
 227      * Returns a list of Hosts that are statically configured and are connected
 228      * to a NodeConnector that is down.
 229      *
 230      * @param containerName
 231      *            Name of the Container. The Container name for the base
 232      *            controller is "default".
 233      * @return List of inactive Hosts.
 234      * <pre>
 235      *
 236      * Example:
 237      *
 238      * Request URL:
 239      * http://localhost:8080/controller/nb/v2/hosttracker/default/hosts/inactive
 240      *
 241      * Response body in XML
 242      *
 243      * &lt;list&gt;
 244      * &#x20;&lt;hostConfig&gt;
 245      * &#x20;&#x20;&lt;dataLayerAddress&gt;00:00:00:00:01:01&lt;/dataLayerAddress&gt;
 246      * &#x20;&#x20;&lt;networkAddress&gt;1.1.1.1&lt;/networkAddress&gt;
 247      * &#x20;&#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 248      * &#x20;&#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:01&lt;/nodeId&gt;
 249      * &#x20;&#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 250      * &#x20;&#x20;&lt;nodeConnectorId&gt;9&lt;/nodeConnectorId&gt;
 251      * &#x20;&#x20;&lt;vlan&gt;0&lt;/vlan&gt;
 252      * &#x20;&#x20;&lt;staticHost&gt;false&lt;/staticHost&gt;
 253      * &#x20;&lt;/hostConfig&gt;
 254      * &#x20;&lt;hostConfig&gt;
 255      * &#x20;&#x20;&lt;dataLayerAddress&gt;00:00:00:00:02:02&lt;/dataLayerAddress&gt;
 256      * &#x20;&#x20;&lt;networkAddress&gt;2.2.2.2&lt;/networkAddress&gt;
 257      * &#x20;&#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 258      * &#x20;&#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:02&lt;/nodeId&gt;
 259      * &#x20;&#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 260      * &#x20;&#x20;&lt;nodeConnectorId&gt;5&lt;/nodeConnectorId&gt;
 261      * &#x20;&#x20;&lt;vlan&gt;0&lt;/vlan&gt;
 262      * &#x20;&#x20;&lt;staticHost&gt;false&lt;/staticHost&gt;
 263      * &#x20;&lt;/hostConfig&gt;
 264      * &lt;/list&gt;
 265      *
 266      * Response body in JSON:
 267      *
 268      * {
 269      * &#x20;"hostConfig":[
 270      * &#x20;&#x20;{
 271      * &#x20;&#x20;&#x20;"dataLayerAddress":"00:00:00:00:01:01",
 272      * &#x20;&#x20;&#x20;"nodeType":"OF",
 273      * &#x20;&#x20;&#x20;"nodeId":"00:00:00:00:00:00:00:01",
 274      * &#x20;&#x20;&#x20;"nodeConnectorType":"OF",
 275      * &#x20;&#x20;&#x20;"nodeConnectorId":"9",
 276      * &#x20;&#x20;&#x20;"vlan":"0",
 277      * &#x20;&#x20;&#x20;"staticHost":"false",
 278      * &#x20;&#x20;&#x20;"networkAddress":"1.1.1.1"
 279      * &#x20;&#x20;},
 280      * &#x20;&#x20;{
 281      * &#x20;&#x20;&#x20;"dataLayerAddress":"00:00:00:00:02:02",
 282      * &#x20;&#x20;&#x20;"nodeType":"OF",
 283      * &#x20;&#x20;&#x20;"nodeId":"00:00:00:00:00:00:00:02",
 284      * &#x20;&#x20;&#x20;"nodeConnectorType":"OF",
 285      * &#x20;&#x20;&#x20;"nodeConnectorId":"5",
 286      * &#x20;&#x20;&#x20;"vlan":"0",
 287      * &#x20;&#x20;&#x20;"staticHost":"false",
 288      * &#x20;&#x20;&#x20;"networkAddress":"2.2.2.2"
 289      * &#x20;&#x20;}
 290      * &#x20;]
 291      * }
 292      * </pre>
 293      */
 294     @Path("/{containerName}/hosts/inactive")
 295     @GET
 296     @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
 297     @TypeHint(Hosts.class)
 298     @StatusCodes({
 299             @ResponseCode(code = 200, condition = "Operation successful"),
 300             @ResponseCode(code = 404, condition = "The containerName is not found"),
 301             @ResponseCode(code = 503, condition = "One or more of Controller Services are unavailable") })
 302     public Hosts getInactiveHosts(
 303             @PathParam("containerName") String containerName,
 304             @QueryParam("_q") String queryString) {
 305         if (!NorthboundUtils.isAuthorized(getUserName(), containerName, Privilege.READ, this)) {
 306             throw new UnauthorizedException("User is not authorized to perform this operation on container "
 307                     + containerName);
 308         }
 309         IfIptoHost hostTracker = getIfIpToHostService(containerName);
 310         Hosts hosts = new Hosts(convertHosts(hostTracker.getInactiveStaticHosts()));
 311         if (queryString != null) {
 312             queryContext.createQuery(queryString, Hosts.class)
 313                 .filter(hosts, HostConfig.class);
 314         }
 315         return hosts;
 316     }
 317
 318     /**
 319      * Returns a host that matches the IP Address value passed as parameter.
 320      *
 321      * @param containerName
 322      *            Name of the Container. The Container name for the base
 323      *            controller is "default".
 324      * @param networkAddress
 325      *            IP Address being looked up
 326      * @return host that matches the IP Address
 327      * <pre>
 328      *
 329      * Example:
 330      *
 331      * Request URL:
 332      * http://localhost:8080/controller/nb/v2/hosttracker/default/address/1.1.1.1
 333      *
 334      * Response body in XML
 335      *
 336      * &lt;hostConfig&gt;
 337      * &#x20;&lt;dataLayerAddress&gt;00:00:00:00:01:01&lt;/dataLayerAddress&gt;
 338      * &#x20;&lt;networkAddress&gt;1.1.1.1&lt;/networkAddress&gt;
 339      * &#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 340      * &#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:01&lt;/nodeId&gt;
 341      * &#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 342      * &#x20;&lt;nodeConnectorId&gt;9&lt;/nodeConnectorId&gt;
 343      * &#x20;&lt;vlan&gt;0&lt;/vlan&gt;
 344      * &#x20;&lt;staticHost&gt;false&lt;/staticHost&gt;
 345      * &lt;/hostConfig&gt;
 346      *
 347      * Response body in JSON:
 348      *
 349      * {
 350      * &#x20;"dataLayerAddress":"00:00:00:00:01:01",
 351      * &#x20;"nodeType":"OF",
 352      * &#x20;"nodeId":"00:00:00:00:00:00:00:01",
 353      * &#x20;"nodeConnectorType":"OF",
 354      * &#x20;"nodeConnectorId":"9",
 355      * &#x20;"vlan":"0",
 356      * &#x20;"staticHost":"false",
 357      * &#x20;"networkAddress":"1.1.1.1"
 358      * }
 359      * </pre>
 360      */
 361     @Path("/{containerName}/address/{networkAddress}")
 362     @GET
 363     @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
 364     @TypeHint(HostConfig.class)
 365     @StatusCodes({
 366             @ResponseCode(code = 200, condition = "Operation successful"),
 367             @ResponseCode(code = 400, condition = "Invalid IP specified in networkAddress parameter"),
 368             @ResponseCode(code = 404, condition = "The containerName is not found"),
 369             @ResponseCode(code = 503, condition = "One or more of Controller Services are unavailable") })
 370     public HostConfig getHostDetails(
 371             @PathParam("containerName") String containerName,
 372             @PathParam("networkAddress") String networkAddress) {
 373         if (!NorthboundUtils.isAuthorized(getUserName(), containerName, Privilege.READ, this)) {
 374             throw new UnauthorizedException("User is not authorized to perform this operation on container "
 375                     + containerName);
 376         }
 377         IfIptoHost hostTracker = getIfIpToHostService(containerName);
 378
 379         InetAddress ip;
 380         try {
 381             ip = InetAddress.getByName(networkAddress);
 382         } catch (UnknownHostException e) {
 383             throw new BadRequestException(RestMessages.INVALIDADDRESS.toString() + " " + networkAddress);
 384         }
 385         for (HostNodeConnector host : hostTracker.getAllHosts()) {
 386             if (host.getNetworkAddress().equals(ip)) {
 387                 return HostConfig.convert(host);
 388             }
 389         }
 390         throw new ResourceNotFoundException(RestMessages.NOHOST.toString());
 391     }
 392
 393     /**
 394      * Add a Static Host configuration. If a host by the given address already
 395      * exists, this method will respond with a non-successful status response.
 396      *
 397      * @param containerName
 398      *            Name of the Container. The Container name for the base
 399      *            controller is "default".
 400      * @param networkAddress
 401      *            Host IP Address
 402      * @param hostConfig
 403      *            Host Config Details
 404      * @return Response as dictated by the HTTP Response Status code
 405      *
 406      * <pre>
 407      *
 408      * Example:
 409      *
 410      * Request URL:
 411      * http://localhost:8080/controller/nb/v2/hosttracker/default/address/1.1.1.1
 412      *
 413      * Request body in XML
 414      *
 415      * &lt;hostConfig&gt;
 416      * &#x20;&lt;dataLayerAddress&gt;00:00:00:00:01:01&lt;/dataLayerAddress&gt;
 417      * &#x20;&lt;networkAddress&gt;1.1.1.1&lt;/networkAddress&gt;
 418      * &#x20;&lt;nodeType&gt;OF&lt;/nodeType&gt;
 419      * &#x20;&lt;nodeId&gt;00:00:00:00:00:00:00:01&lt;/nodeId&gt;
 420      * &#x20;&lt;nodeConnectorType&gt;OF&lt;/nodeConnectorType&gt;
 421      * &#x20;&lt;nodeConnectorId&gt;9&lt;/nodeConnectorId&gt;
 422      * &#x20;&lt;vlan&gt;1&lt;/vlan&gt;
 423      * &#x20;&lt;staticHost&gt;true&lt;/staticHost&gt;
 424      * &lt;/hostConfig&gt;
 425      *
 426      * Request body in JSON:
 427      *
 428      * {
 429      * &#x20;"dataLayerAddress":"00:00:00:00:01:01",
 430      * &#x20;"nodeType":"OF",
 431      * &#x20;"nodeId":"00:00:00:00:00:00:00:01",
 432      * &#x20;"nodeConnectorType":"OF",
 433      * &#x20;"nodeConnectorId":"9",
 434      * &#x20;"vlan":"1",
 435      * &#x20;"staticHost":"true",
 436      * &#x20;"networkAddress":"1.1.1.1"
 437      * }
 438      * </pre>
 439      */
 440
 441     @Path("/{containerName}/address/{networkAddress}")
 442     @PUT
 443     @Consumes({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
 444     @StatusCodes({
 445             @ResponseCode(code = 201, condition = "Static host created successfully"),
 446             @ResponseCode(code = 400, condition = "Invalid parameters specified, see response body for details"),
 447             @ResponseCode(code = 404, condition = "The container or resource is not found"),
 448             @ResponseCode(code = 409, condition = "Resource conflict, see response body for details"),
 449             @ResponseCode(code = 503, condition = "One or more of Controller services are unavailable") })
 450     public Response addHost(@Context UriInfo uriInfo, @PathParam("containerName") String containerName,
 451             @PathParam("networkAddress") String networkAddress,
 452             @TypeHint(HostConfig.class) HostConfig hostConfig) {
 453
 454         if (!NorthboundUtils.isAuthorized(getUserName(), containerName, Privilege.WRITE, this)) {
 455             return Response.status(Response.Status.UNAUTHORIZED)
 456                     .entity("User is not authorized to perform this operation on container " + containerName)
 457                     .build();
 458         }
 459         handleDefaultDisabled(containerName);
 460
 461         IfIptoHost hostTracker = getIfIpToHostService(containerName);
 462
 463         HostConfig hc = hostConfig;
 464         if (!networkAddress.equals(hc.getNetworkAddress())) {
 465             return Response.status(Response.Status.CONFLICT)
 466                     .entity("Resource name in config object doesn't match URI")
 467                     .build();
 468         }
 469         if (!hc.isStaticHost()) {
 470             return Response.status(Response.Status.BAD_REQUEST)
 471                     .entity("Can only add static host.")
 472                     .build();
 473         }
 474         Node node = handleNodeAvailability(containerName, hc.getNodeType(), hc.getNodeId());
 475         NodeConnector nc = NodeConnector.fromStringNoNode(hc.getNodeConnectorType(), hc.getNodeConnectorId(), node);
 476
 477         Status status = hostTracker.addStaticHost(networkAddress, hc.getDataLayerAddress(), nc, hc.getVlan());
 478         if (status.isSuccess()) {
 479             NorthboundUtils.auditlog("Static Host", username, "added", networkAddress, containerName);
 480             return Response.created(uriInfo.getRequestUri()).build();
 481         }
 482
 483         return NorthboundUtils.getResponse(status);
 484     }
 485
 486     /**
 487      * Delete a Static Host configuration
 488      *
 489      * @param containerName
 490      *            Name of the Container. The Container name for the base
 491      *            controller is "default".
 492      * @param networkAddress
 493      *            IP Address
 494      * @return Response as dictated by the HTTP Response code.
 495      *
 496      * Example:
 497      *
 498      * Request URL:
 499      * http://localhost:8080/controller/nb/v2/hosttracker/default/address/1.1.1.1
 500      *
 501      */
 502
 503     @Path("/{containerName}/address/{networkAddress}")
 504     @DELETE
 505     @Consumes({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
 506     @StatusCodes({
 507             @ResponseCode(code = 204, condition = "Static host deleted successfully"),
 508             @ResponseCode(code = 404, condition = "The container or a specified resource was not found"),
 509             @ResponseCode(code = 406, condition = "Cannot operate on Default Container when other Containers are active"),
 510             @ResponseCode(code = 503, condition = "One or more of Controller service is unavailable") })
 511     public Response deleteHost(
 512             @PathParam(value = "containerName") String containerName,
 513             @PathParam(value = "networkAddress") String networkAddress) {
 514
 515         if (!NorthboundUtils.isAuthorized(getUserName(), containerName, Privilege.WRITE, this)) {
 516             return Response.status(Response.Status.UNAUTHORIZED)
 517                     .entity("User is not authorized to perform this operation on container " + containerName)
 518                     .build();
 519         }
 520         handleDefaultDisabled(containerName);
 521         IfIptoHost hostTracker = getIfIpToHostService(containerName);
 522
 523         Status status = hostTracker.removeStaticHost(networkAddress);
 524         if (status.isSuccess()) {
 525             NorthboundUtils.auditlog("Static Host", username, "removed", networkAddress, containerName);
 526             return Response.noContent().build();
 527         }
 528         return NorthboundUtils.getResponse(status);
 529
 530     }
 531
 532     private void handleDefaultDisabled(String containerName) {
 533         IContainerManager containerManager = (IContainerManager) ServiceHelper
 534                 .getGlobalInstance(IContainerManager.class, this);
 535         if (containerManager == null) {
 536             throw new ServiceUnavailableException(
 537                     RestMessages.SERVICEUNAVAILABLE.toString());
 538         }
 539         if (containerName.equals(GlobalConstants.DEFAULT.toString())
 540                 && containerManager.hasNonDefaultContainer()) {
 541             throw new ResourceConflictException(
 542                     RestMessages.DEFAULTDISABLED.toString());
 543         }
 544     }
 545
 546     private Node handleNodeAvailability(String containerName, String nodeType, String nodeId) {
 547
 548         Node node = Node.fromString(nodeType, nodeId);
 549         if (node == null) {
 550             throw new ResourceNotFoundException(nodeId + " : "
 551                     + RestMessages.NONODE.toString());
 552         }
 553
 554         ISwitchManager sm = (ISwitchManager) ServiceHelper.getInstance(
 555                 ISwitchManager.class, containerName, this);
 556
 557         if (sm == null) {
 558             throw new ServiceUnavailableException("Switch Manager "
 559                     + RestMessages.SERVICEUNAVAILABLE.toString());
 560         }
 561
 562         if (!sm.getNodes().contains(node)) {
 563             throw new ResourceNotFoundException(node.toString() + " : "
 564                     + RestMessages.NONODE.toString());
 565         }
 566         return node;
 567     }
 568
 569 }